Solar panel cleaning that actually restores production.
Dirty solar panels don't fail — they just quietly lose 10–25% of their output and most homeowners never notice because the utility bill creeps up slowly. We clean every panel with deionized water (no mineral spots), a soft solar-specific brush (no scratches), and no detergents that would void the panel warranty. You get the kilowatt-hours you paid for.
What's included in this service?
- Deionized (DI) water — pure, streak-free, leaves no mineral residue
- Soft bristle brush engineered for solar panel glass
- Water-fed pole from ground where possible (safer, cheaper, no roof walk)
- Roof-access cleaning for panels not reachable from ground
- Bird nest and droppings removal from under-panel spaces
- Visual inspection for hot spots, discoloration, and cracks (we report what we see)
- Inverter LED status check to confirm post-clean output
- Gutter and valley debris clearance below panel array (optional add-on)
When do you need this service?
- Your production app shows output dropping below last year's for the same month
- You can see a visible layer of dust, pollen, or bird mess from the ground
- Post-brush-fire ash has coated the array
- Panels are shaded by pollen deposits after spring bloom
- It has been 12+ months since last clean
- Pre-summer tune-up before peak production season
- Net-metering true-up is approaching and you want max credit
What do homeowners ask about Solar Panels?
Does cleaning solar panels really matter?
NREL and independent studies put the production loss from dirty panels at 10–25% depending on tilt, location, and dust exposure. At San Diego electricity rates, a typical 6 kW system loses $150–$400 per year to soiling. Annual cleaning pays for itself and then some.
Will cleaning void my panel warranty?
Not when done correctly. Most panel manufacturers explicitly require clean panels for warranty and prohibit high-pressure water, abrasive brushes, and solvents. We use deionized water, soft solar-specific brushes, and no detergents — which meets or exceeds every major manufacturer's cleaning specification.
Can't I just hose the panels off myself?
Tap water leaves mineral spots that reduce light transmission — you're trading one kind of soiling for another. And walking a tile or shingle roof without a harness is how serious falls happen. For single-story accessible arrays on a low pitch you could do it yourself with a soft brush and DI water. For the other 80% of homes, the risk-versus-reward math points to professional.
How often should solar panels be cleaned in San Diego?
Annually for most homes. Quarterly for homes under heavy tree cover, near agricultural fields, or in high-dust corridors (east county, inland Ramona, Poway canyon edges). After every major brush fire or dust event. Before and after spring pollen season if your array faces into a bloom-heavy neighborhood.
What's the difference between you and the solar installer's cleaning service?
Most installers sub out cleaning to third parties and mark it up. We specialize in it. We also clean your windows, skylights, and gutters in the same visit if you want — one truck, one crew, one invoice.
Where do we offer Solar Panels in San Diego County?
We provide solar panels in every city and community in San Diego County. Pick your city for local climate notes and service specifics.
See solar panels in all 47 cities
Homeowners who hired us for this
Quarterly plan since last summer. Same tech every visit, knows our house, texts before he comes. Windows always perfect, and honestly the screens and tracks are the real difference — other companies skip those.
We had years of sprinkler spots on the south side of the house. Two other companies said they could not remove them. Shine Pro brought specific chemistry, polished them out in an afternoon, and showed me which sprinkler head was the culprit. Glass looks new.
Our production app was showing below last year. Had them clean the panels plus our windows in the same visit. Production bounced back within a week. Bundled price was better than getting the two services separately.
Need solar panels in San Diego County?
Call for a free quote. Most work scheduled within the week.